The Theory of Plate Tectonics
... Plates move due to convection currents in the Astenosphere. The inner fluids become hotter than the outer ones. Hot fluids are less dense than cold ones, so they ascend while the colder ones descend. This makes what we call convection currents. ...
... Plates move due to convection currents in the Astenosphere. The inner fluids become hotter than the outer ones. Hot fluids are less dense than cold ones, so they ascend while the colder ones descend. This makes what we call convection currents. ...
Subglacial lakes in Antarctica:
... conditions necessary to support life in such extreme environments. Melting and freezing at the base of the ice sheet, which slowly flows across the lakes, controls the flux of water, biota and sediment particles through the lakes. Geothermal heat flux and heat transport into the lakes from the crust ...
... conditions necessary to support life in such extreme environments. Melting and freezing at the base of the ice sheet, which slowly flows across the lakes, controls the flux of water, biota and sediment particles through the lakes. Geothermal heat flux and heat transport into the lakes from the crust ...
Penrose_Lesher - The University of Texas at Dallas
... High-Mg Magmatism Through Time: Implications for Plate Tectonics C.M. Lesher Mineral Exploration Research Centre Department of Earth Sciences Laurentian University, Sudbury, Ontario ...
... High-Mg Magmatism Through Time: Implications for Plate Tectonics C.M. Lesher Mineral Exploration Research Centre Department of Earth Sciences Laurentian University, Sudbury, Ontario ...
The stability of the continents and the tendency for old oceanic
... Problem set #3. Isostasy and Ridge Push (Due in class on May 6) A. Why do only oceans get subducted? ...
... Problem set #3. Isostasy and Ridge Push (Due in class on May 6) A. Why do only oceans get subducted? ...
Earth Science
... pieces of continental and oceanic crust. 13. The theory that pieces of Earth’s lithosphere are in constant motion, driven by convection currents in the mantle. 14. Vibrations that travel through Earth carrying the energy released during an earthquake. 15. The movement of a fluids caused by differenc ...
... pieces of continental and oceanic crust. 13. The theory that pieces of Earth’s lithosphere are in constant motion, driven by convection currents in the mantle. 14. Vibrations that travel through Earth carrying the energy released during an earthquake. 15. The movement of a fluids caused by differenc ...
Earth Science - Issaquah Connect
... Plate Tectonics • Plate tectonics is the concept that the outer surface of the Earth is made of large plates of crust and outer mantle that are slowly moving over the surface of the liquid outer mantle. – Heat from the Earth causes the slow movement. – Plates are pulling apart in some areas, and co ...
... Plate Tectonics • Plate tectonics is the concept that the outer surface of the Earth is made of large plates of crust and outer mantle that are slowly moving over the surface of the liquid outer mantle. – Heat from the Earth causes the slow movement. – Plates are pulling apart in some areas, and co ...
Pangaea Wegener video guide 2016 17
... 1) Alfred Wegener noticed that the shapes of our present day continents could fit together like puzzle pieces. He called this massive land mass “Pangaea” meaning all/whole earth. He theorized further that around 250 million years ago these continents drifted apart. His theories needed evidence to su ...
... 1) Alfred Wegener noticed that the shapes of our present day continents could fit together like puzzle pieces. He called this massive land mass “Pangaea” meaning all/whole earth. He theorized further that around 250 million years ago these continents drifted apart. His theories needed evidence to su ...
Plate Tectonics - Ms. Gravette and the Mad Scientists
... In mid 1900s, scientists found under-water mountain ranges called mid-ocean ridges. This discovery led to the Theory of Plate Tectonics ...
... In mid 1900s, scientists found under-water mountain ranges called mid-ocean ridges. This discovery led to the Theory of Plate Tectonics ...
PowerPoint Presentation - Drifting Continents
... – “It appears that South America and Africa fit together” • Antonio Snyder published a sketch in 1655 showing S.A. and Africa together • Benjamin Franklin in 1782 said – “The crust of the Earth must be a shell floating on a fluid interior. Thus, the surface of the globe would be capable of being bro ...
... – “It appears that South America and Africa fit together” • Antonio Snyder published a sketch in 1655 showing S.A. and Africa together • Benjamin Franklin in 1782 said – “The crust of the Earth must be a shell floating on a fluid interior. Thus, the surface of the globe would be capable of being bro ...
earth structure ppt
... Physical Composition How rocks respond to increased temperature and pressure at depth Based on physical properties, Earth is composed of five layers ...
... Physical Composition How rocks respond to increased temperature and pressure at depth Based on physical properties, Earth is composed of five layers ...
Plate Tectonics and Plate Boundaries
... • This forms when two plates slide horizontally past on each other as they move in opposite directions. • Plates Involved: • Ocean-Ocean Ex) East Pacific Rise • Continent-Continent Ex) San Andreas fault ...
... • This forms when two plates slide horizontally past on each other as they move in opposite directions. • Plates Involved: • Ocean-Ocean Ex) East Pacific Rise • Continent-Continent Ex) San Andreas fault ...
Final Examination Key
... Fill-Ins - Write or print in the word or words which best completes each statement or answers each question. When the statement says “name and describe”, names without descriptions will receive no credit. Diagrams may be used to supplement answers, where useful. Illegible answers are WRONG. (1 point ...
... Fill-Ins - Write or print in the word or words which best completes each statement or answers each question. When the statement says “name and describe”, names without descriptions will receive no credit. Diagrams may be used to supplement answers, where useful. Illegible answers are WRONG. (1 point ...
Chap7Sect3 review
... So what will happen as these plates in the ocean floor continue to spread? • Earth 100 Million Years from now • Convection Currents in the Earth. One more time, a different way! • Plate tectonics on a cocoa earth - YouTube ...
... So what will happen as these plates in the ocean floor continue to spread? • Earth 100 Million Years from now • Convection Currents in the Earth. One more time, a different way! • Plate tectonics on a cocoa earth - YouTube ...
Mr. Burton 2.3 Notes
... As lava cools, it builds a mid-ocean range, or underwater mountain, that can rise above the surface of the ocean to form islands. As plates pass by each other, they sometimes grind together, producing earthquakes, sudden, violent movements of Earth’s crust. Earthquakes often take place along faults, ...
... As lava cools, it builds a mid-ocean range, or underwater mountain, that can rise above the surface of the ocean to form islands. As plates pass by each other, they sometimes grind together, producing earthquakes, sudden, violent movements of Earth’s crust. Earthquakes often take place along faults, ...
Earth`s interio
... • P-wave shadow zone • S-wave shadow zone • Outer Core- liquid • Inner Core- solid • believed to be mostly iron – with some nickel – Overall Density of earth = 5.5 • Crust 2.7-3.0 • Upper Mantle 3.3 • Mantle is 85% of volume of earth • Fe at core boundary around 10.0 • at center is around 13.0 – Evi ...
... • P-wave shadow zone • S-wave shadow zone • Outer Core- liquid • Inner Core- solid • believed to be mostly iron – with some nickel – Overall Density of earth = 5.5 • Crust 2.7-3.0 • Upper Mantle 3.3 • Mantle is 85% of volume of earth • Fe at core boundary around 10.0 • at center is around 13.0 – Evi ...
Chapter 02 Earth Structure and Plate Tectonics
... 52. A fixed volcanic hot spot on Earth tends to produce a _______ on a moving plate. 53. The present oceans have been created during the last 54. Which of the following occurred during the Paleozoic era? 55. A program of deep-sea drilling for cores from the ocean's bottom is carried out by the 56. ...
... 52. A fixed volcanic hot spot on Earth tends to produce a _______ on a moving plate. 53. The present oceans have been created during the last 54. Which of the following occurred during the Paleozoic era? 55. A program of deep-sea drilling for cores from the ocean's bottom is carried out by the 56. ...
Plate Tectonics - LaVergne Middle School
... •1. Away from each other –Found underneath oceans •2. Towards each other •3. Side by side ...
... •1. Away from each other –Found underneath oceans •2. Towards each other •3. Side by side ...
Interior of Earth Graphic Organizer
... Earth has a diameter of about 12,756 km (7,972 mi). The Earth's interior consists of rock and metal. It is made up of four main layers: 1) the inner core: a solid metal core made up of nickel and iron (2440 km diameter) 2) the outer core: a liquid molten core of nickel and iron 3) the mantle: dense ...
... Earth has a diameter of about 12,756 km (7,972 mi). The Earth's interior consists of rock and metal. It is made up of four main layers: 1) the inner core: a solid metal core made up of nickel and iron (2440 km diameter) 2) the outer core: a liquid molten core of nickel and iron 3) the mantle: dense ...
PLATE TECTONICS
... Wegener observed that 1) the coastlines of some continents fit like a jigsaw puzzle, and 2) similar fossils are found on opposite sides of the Atlantic. But he could not explain why continents would drift. • In 1959, Harry Hess proposed seafloor spreading: molten rock seeps up from the mantle ...
... Wegener observed that 1) the coastlines of some continents fit like a jigsaw puzzle, and 2) similar fossils are found on opposite sides of the Atlantic. But he could not explain why continents would drift. • In 1959, Harry Hess proposed seafloor spreading: molten rock seeps up from the mantle ...
What are Tectonic Plates?
... or Kā Tiritiri o te Moana in Maori. This dramatic geological feature was formed by the collison of the south east Pacific Plate and the north west IndoAustralian plate. In the last 45 million years, the tectonic pressure created by the transform boundary of the two plates has pushed 20km of rock up ...
... or Kā Tiritiri o te Moana in Maori. This dramatic geological feature was formed by the collison of the south east Pacific Plate and the north west IndoAustralian plate. In the last 45 million years, the tectonic pressure created by the transform boundary of the two plates has pushed 20km of rock up ...
Climate Change - Shawlands Academy
... 2. The 42,000 year tilt The tilt of the earth’s axis changes from 21.5 to 24.5 degrees and back again – the greater the angle of tilt, the greater the area receiving the Sun overhead ...
... 2. The 42,000 year tilt The tilt of the earth’s axis changes from 21.5 to 24.5 degrees and back again – the greater the angle of tilt, the greater the area receiving the Sun overhead ...
Tectonics, Dynamics and Geomorphology of the Eastern Tibetan
... East and South China Sea margins. Thus its uplift history is closely linked to the spatial and temporal patterns of Cenozoic sedimentation along the adjacent continental margins, both because uplift drives surface erosion and because the increasing elevation of the plateau is thought to have trigger ...
... East and South China Sea margins. Thus its uplift history is closely linked to the spatial and temporal patterns of Cenozoic sedimentation along the adjacent continental margins, both because uplift drives surface erosion and because the increasing elevation of the plateau is thought to have trigger ...
Post-glacial rebound
Post-glacial rebound (sometimes called continental rebound) is the rise of land masses that were depressed by the huge weight of ice sheets during the last glacial period, through a process known as isostatic depression. Post-glacial rebound and isostatic depression are different parts of a process known as either glacial isostasy, glacial isostatic adjustment, or glacioisostasy. Glacioisostasy is the solid Earth deformation associated with changes in ice mass distribution. The most obvious and direct affects of post-glacial rebound are readily apparent in northern Europe (especially Scotland, Estonia, Latvia, Fennoscandia, and northern Denmark), Siberia, Canada, the Great Lakes of Canada and the United States, the coastal region of the US state of Maine, parts of Patagonia, and Antarctica. However, through processes known as ocean siphoning and continental levering, the effects of post-glacial rebound on sea-level are felt globally far from the locations of current and former ice sheets.